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Keywords:

  • Ionic ozonides;
  • Superoxides;
  • Cesium;
  • Crystal structure determination;
  • Raman spectroscopy

Abstract

Cs3(O3)2(O2)·NH3 was prepared by the reaction of CsO3 and CsO2, in the presence of traces of NH4Cl, in liquid ammonia. It is the first example of a mixed alkali metal ozonide superoxide. The title compound crystallizes in the trigonal space group P3121 (No.152) with a = 929.02(3) and c = 1028.63(8) pm and three formula units per unit cell. The cesium cations, O3 and O2 together build a honeycomb-like framework structure with channels extending along [001]. The channels are occupied by ammonia molecules.